US11117303B2 - Method and device for melt-spinning, drawing, crimping and winding multiple threads - Google Patents
Method and device for melt-spinning, drawing, crimping and winding multiple threads Download PDFInfo
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- US11117303B2 US11117303B2 US15/123,454 US201515123454A US11117303B2 US 11117303 B2 US11117303 B2 US 11117303B2 US 201515123454 A US201515123454 A US 201515123454A US 11117303 B2 US11117303 B2 US 11117303B2
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- threads
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/02—Heat treatment
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
- D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/731—Filamentary material, i.e. comprised of a single element, e.g. filaments, strands, threads, fibres
Definitions
- the invention relates to a method for melt-spinning, drawing, crimping, and winding a plurality of threads as disclosed herein.
- the invention further relates to a device for melt-spinning, drawing, crimping, and winding a plurality of threads as disclosed herein.
- the threads after extrusion In the production of crimped threads in a melt-spinning process it is usual for the threads after extrusion to be collectively guided and treated as a thread group. In this way, it is usual for the threads to be collectively guided at a mutual spacing on the circumference of godet units. Depending on the respective treatment step and on the treatment apparatus, dissimilar thread spacings are required between the threads. In this way, a spinning pitch which defines the mutual spacing of the spinning nozzles has to be adhered to when the threads are being extruded, for example. After extruding, and in order to be guided on the godet units, the threads may be guided at a substantially tighter mutual treatment spacing.
- the dissimilar thread spacings require that the threads have either to be spread apart or gathered. Since all threads of the thread skein of a thread group have to be produced and treated as far as possible under identical conditions, the deflections of the individual threads are limited so as to keep the thread tension acting on the threads as uniform as possible. On account thereof, very long transition zones for guiding the threads from a short thread spacing to a large thread spacing often result. Such spreading or gathering of threads may indeed be facilitated by additional thread guides, the latter however have the disadvantage of each thread guide generating mechanical stress and thus additional tensile force on the thread. Such undesirable friction points are therefore avoided as far as possible in the guiding of threads.
- the infeed to the texturing apparatuses in which a crimp in the filament strands in the threads is generated is particularly sensitive.
- a method of the generic type and a device of the generic type are known from EP 1 449 945 A2, in which the threads of a thread skein are spread out between a godet unit and a crimping installation, wherein the texturing apparatuses of the crimping installation are held in a fan-like manner such that neither deflecting nor kinking arises in the run-in to the texturing apparatuses.
- the texturing apparatuses are thus utilized in thread guiding in order to spread out the thread skein, wherein the instances of redirection are dislocated to a region in which the threads are compressed so as to form a thread plug.
- the threads may indeed be guided directly into the texturing apparatuses, without any redirecting and kinking, but with the disadvantage that the threads by virtue of being spread out are guided in an oblique manner across the godet.
- individual filament ruptures may arise in particular in the case of threads from polymers which tend to adhere to godets, or that the effects of friction on the godet lead to color variations in the case of multi-colored threads.
- the deflection that has been relocated to the region of the thread plug leads to irregularities in the density of the plug, this being particularly relevant during cooling for permanently setting the crimp.
- this object is achieved by a method as disclosed herein, and by a device as disclosed herein.
- each thread within the thread skein is subject to identical thread guiding and identical treatment.
- the threads in a singularized manner and with a plurality of wrappings are guided beside one another on at least one of the godet units such that an overall larger thread spacing arises between the threads on the godet unit.
- the former are guided directly into the texturing apparatuses in a straight thread run in parallel beside one another, such that identical conditions prevail on each of the threads.
- the thread spacings between the run-off from the godet unit and a run-in into the texturing apparatuses may in particular be embodied in a particularly short manner, which favorably influences in particular temperature control of the threads.
- Certain techniques are directed to melt spinning, drawing, crimping and winding multiple threads.
- the threads are spun from a plurality of spinnerets of a spinning device and are drawn as a thread group by a drawing device and are subsequently fed for crimping next to one another to a plurality of texturing units.
- the threads are guided individually with a plurality of wraps next to one another on a godet unit and, after running off from the godet unit, are guided in a straight thread run parallel next to one another into the texturing units.
- adjacent texturing units of the crimping device form a treatment spacing between themselves which is such that, in the case of being guided individually with a plurality of wraps on the godet unit, the threads can be guided in parallel in a straight thread run.
- the device according to the invention achieves the object in that the adjacent texturing apparatuses of the crimping installation therebetween form a treatment spacing in such a manner that the threads in the case of singularized guiding with a plurality of wrappings on the godet unit are capable of being guided in parallel and in a straight thread run. Due to the singularized thread guiding of the threads, arbitrary guide spacings between the threads may thus be implemented.
- the circumferential portions of the godet unit between adjacent threads are in each case utilized for the wrappings of the thread such that sufficient contact lengths on the circumference of heated godets are in particular implementable for temperature-controlling the threads.
- a godet unit herein is understood to be a roller pair which enables multiple wrappings of the thread.
- the roller pair herein may be formed from two driven heated godets, or from one heated godet and one overflow roller.
- the texturing apparatuses used for producing crimped threads in the melt-spinning process utilize what is referred to as the “stuffer box” principle in which the heated multifilament thread is compressed to form a thread plug.
- the refinement of the method according to the invention in which for crimping the threads are each compressed to form a thread plug, and in which the thread plugs are guided in parallel beside one another, and are dissolved to form crimped threads is particularly advantageous.
- the treatment of the thread plugs in the production of a thread skein of crimped threads is also capable of being carried out at high uniformity.
- the dissolving of the thread plug herein is also advantageously performed with threads which are guided in parallel and which are drawn off in parallel beside one another by a godet unit, wherein the threads for post-treatment in a singularized manner and with a plurality of wrappings are guided beside one another on the godet unit.
- the refinement of the invention is provided in which the threads after being spun are drawn and crimped in parallel beside one another at a mutual spinning spacing. Gathering of the thread skein after spinning is thus not required, so that the threads after spinning, between the spinning installation and the drawing installation, may be received and guided at very short spacings.
- the treatment spacing during crimping of the threads to be tuned to the subsequent winding of the threads to form packages such that the threads before being wound to form a plurality of packages are drawn and crimped in parallel beside one another, at a mutual winding spacing which is contingent on the packages.
- each of the threads of the thread skein may be produced under identical conditions, having identical thread guiding without additional redirections or deflections.
- the refinement in which the treatment spacing between the texturing apparatuses is determined by a number of wrappings of one of the threads on the godet units is preferably embodied.
- the contact length between the thread and a heated surface of a godet of the godet unit which contact length is relevant to the heating of the thread, may be considered in the context of thread guiding, so as to transfer the already heated thread by way of a short transition zone directly into the texturing apparatuses.
- the number of wrappings on the godet units herein defines the contact length between the thread and a heated godet surface.
- the device according to the invention may be embodied in various variants.
- a spinning spacing which is provided between adjacent spinning nozzles of the spinning installation may be chosen so as to be equal to the treatment spacing between the texturing apparatuses.
- the treatment spacing between the texturing apparatuses may also be configured so as to be equal to a winding spacing between adjacent winding positions of the winding installation.
- the alternative in which the spinning spacing between adjacent spinning nozzles and the winding spacing between adjacent winding positions are of identical size is particularly advantageous for a compact arrangement.
- FIG. 1 schematically shows a view of a first exemplary embodiment of the device according to the invention
- FIG. 2 schematically shows a partial view of a further exemplary embodiment of the device according to the invention
- FIG. 3 schematically shows a partial view of a further exemplary embodiment of the device according to the invention.
- FIG. 1 A first exemplary embodiment of the device according to the invention for melt-spinning, drawing, crimping, and winding a plurality of threads is schematically shown in FIG. 1 .
- the device is composed of a spinning installation 1 , a drawing installation 8 , a crimping installation 11 , a post-treatment installation 16 , and a winding installation 21 , which are disposed sequentially to form a thread run.
- the spinning installation 1 in this exemplary embodiment is schematically illustrated by a spinning beam 2 having three spinning nozzles 3 . 1 , 3 . 2 , and 3 . 3 , which are disposed beside one another on the lower side of the spinning beam 2 .
- the spinning beam 2 is usually embodied so as to be heated, having a melt-distribution system and one or a plurality of spinning pumps.
- a melt which is infed from a melt source is infed to the spinning nozzles 3 . 1 to 3 . 3 by way of an infeed 4 .
- a cooling installation 5 is provided directly below the spinning beam 2 , so as to cool the filament strands which are extruded by the spinning nozzles 3 . 1 to 3 . 3 .
- a plurality of collective thread guides 6 . 1 to 6 . 3 are assigned to the cooling installation 5 in the lower region, so as to gather the filament bundles which are produced per spinning nozzle 3 . 1 to 3 . 3 so as to form in each case one thread 27 .
- the threads 27 are collectively drawn off from the spinning installation 1 as a thread skein.
- the drawing installation 8 has a first godet unit 9 . 1 .
- the godet unit 9 . 1 is formed by two godets 10 . 1 and 10 . 2 which are held in a cantilevered manner, mounted at one side, and are each coupled to one drive.
- the godets 10 . 1 and 10 . 2 of the godet unit 9 . 1 are preferably embodied so as to be heated.
- a second godet unit 9 . 2 which is likewise formed from two godets 10 . 1 and 10 . 2 is assigned to the godet unit 9 . 1 .
- the godets 10 . 1 and 10 . 2 of the godet unit 9 . 2 are coupled to one drive.
- the godet units 9 . 1 and 9 . 2 are usually driven at a differential speed, so as to collectively draw the threads 27 as a thread skein.
- a thread-skein guide 7 which sets a predefined treatment spacing between the threads is provided between the drawing installation 8 and the spinning installation 1 .
- the treatment spacing between the threads 27 is chosen in such a manner that the threads 27 in a singularized manner and with a plurality of wrappings are guided beside one another on the circumference of the godet units 9 . 1 and 9 . 2 .
- the latter at the commencement of the process are sequentially and with multiple wrappings threaded on the godet units 9 . 1 and 9 . 2 .
- the treatment spacing between the threads is determined significantly by the number of wrappings of the individual threads on the godet units 9 . 1 and 9 . 2
- the number of wrappings depends substantially on the thread treatment, in particular on the temperature control of the thread. In this way, six to twelve wrappings are usually required for drawing, in extreme cases three to twenty wrappings. This results in a treatment spacing in the range from 20 to 200 mm between adjacent threads.
- the treatment spacing between the threads remains so as to be non-modified up to the winding installation 21 .
- a pitch between adjacent texturing apparatuses that enables a straight thread run between the drawing installation 8 and the crimping installation 11 may thus be set.
- the crimping installation 11 has a plurality of texturing apparatuses 12 . 1 to 12 . 3 which are disposed at the mutual treatment spacing.
- the treatment spacing is identified in FIG. 1 , using the reference letter B.
- the treatment spacing between the crimping installation 11 and the winding installation 21 it is also possible for the treatment spacing between the crimping installation 11 and the winding installation 21 to be embodied so as to be larger or smaller.
- the texturing apparatuses 12 . 1 to 12 . 3 in this exemplary embodiment are each formed by one conveying nozzle 13 and a stuffer box 14 . Texturing apparatuses of this type are well known so that no further explanation is offered at this point.
- a cooling drum 15 is provided in order for the thread plugs 28 which are formed by the texturing apparatuses 12 . 1 to 12 . 3 to be received and cooled, the thread plugs 28 being guided on the circumference of said cooling drum 15 in parallel beside one another.
- the thread plugs 28 herein may be guided with a single wrapping or multiple wrappings on the circumference of the cooling drum 15 .
- a post-treatment installation 16 by way of which the thread plugs 28 each are dissolved to form one thread 27 and by way of which a post-treatment, in particular a thermal post-treatment, is carried out under tension, is assigned to the crimping installation 11 .
- the post-treatment installation 16 has two godet units 17 . 1 and 17 . 2 . each being formed by one godet 18 and one redirection roller 19 .
- the godet 18 and the redirection roller 19 are disposed in a cantilevered manner, wherein the godet 18 is coupled to a drive.
- a plurality of swirling apparatuses 20 . 1 , 20 . 2 , and 20 . 3 are disposed between the godet units 17 . 1 and 17 . 2 .
- the swirling apparatuses 20 . 1 , 20 . 2 , and 20 . 3 likewise have the treatment spacing B therebetween such that the threads in the case of singularized guiding are guidable in parallel in a straight thread run, with a plurality of wrappings on the godet unit 17 . 1 .
- the threads 27 are received by the godet unit 17 . 2 and are guided likewise in a singularized manner beside one another, with a plurality of wrappings on the godet 18 and on the redirection roller 19 .
- the crimped threads 27 are wound to form packages 29 .
- the winding installation 21 for each thread has one winding position 22 . 1 , 22 . 2 , and 22 . 3 .
- a winding spindle 24 . 1 for receiving the packages 29 , and a traversing unit 23 and a contact roller 31 for placing the threads 27 are assigned to the winding positions 22 . 1 , 22 . 2 , and 22 . 3 .
- the run-in of the threads 27 to the winding positions 22 . 1 to 22 . 3 is performed by way of what are referred to as head thread guides 26 which are disposed upstream of each of the winding positions 22 . 1 to 22 . 3 .
- the winding spindle 24 . 1 is held on a winding turret 32 which, in order for the threads to be wound in a continuous manner, holds yet a second winding spindle 24 . 2 .
- the package width of the wound packages 29 requires a pitch between the winding positions 22 . 1 to 22 . 3 .
- the pitch between the winding positions 22 . 1 to 22 . 3 herein is referred to as the winding spacing and in FIG. 1 is identified using the reference letter W.
- the winding spacing W between the winding positions 22 . 1 to 22 . 3 is larger than the treatment spacing B in the upstream post-treatment installation 16 .
- a thread distributor guide 25 is thus provided between the winding installation 21 and the post-treatment installation 16 , by way of which thread distributor guide 25 spreading out of the threads 27 is possible.
- a plurality of threads in parallel beside one another are spun from a plurality of spinning nozzles 3 . 1 to 3 . 3 by the spinning installation 1 .
- the spinning nozzles 3 . 1 to 3 . 3 of the spinning installation 1 are each held on the spinning beam 2 at a mutual spinning spacing.
- the spinning spacing is identified in FIG. 1 , using the reference letter S.
- the spinning spacing S in this exemplary embodiment is larger than the treatment spacing B in the drawing installation 8 . Therefore, the threads 27 by the thread-skein guide 27 are forced together from the spinning spacing S to the treatment spacing B.
- Drawing, crimping, and post-treating the threads 27 is performed with an advantageous parallel thread guiding such that no thread deflections or redirections and thus no additional thread-guiding elements are required between the drawing installation 8 , the crimping installation 11 , and the post-treatment installation 16 .
- the threads 27 may be drawn, crimped, and post-treated under identical conditions. In this way, a high level of uniformity is possible in the production of the crimped threads.
- the number of threads in the exemplary embodiment as per FIG. 1 is exemplary. In principle, two or else more threads may be produced simultaneously as a thread skein as per the method according to the invention. It is essential herein that the threads are individually threaded on the godet units of the drawing installation 8 , wherein the threads henceforth are treated and wound as one thread skein.
- the enlarged treatment spacing between the threads has proven successful in particular also in guiding the thread plugs 28 on the cooling drum 15 . In this way, contact between the thread plugs may advantageously be completely avoided even in the case of multiple wrappings.
- the instances of thread guiding in the entire process are determined substantially by the spinning spacing S of adjacent spinning nozzles, by the treatment spacing B of adjacent texturing apparatuses, and by the winding spacing W of adjacent winding positions.
- the spinning spacing S in the spinning installation 1 , the treatment spacing B in the drawing installation 8 , and the winding spacing W in the winding installation 21 are typically embodied in various sizes, depending on the apparatuses.
- the method according to the invention and the device according to the invention there is now the potential for parallel thread guiding to be implemented also between a spinning installation and a drawing installation, without having to surrender the advantages of thread-skein guiding.
- FIG. 2 An exemplary embodiment of the device according to the invention, in which thread guiding from spinning to drawing is performed without forcing together or spreading out threads, is illustrated in a partial view in FIG. 2 .
- the exemplary embodiment as per FIG. 2 in terms of the parts of the device is substantially identical to the aforementioned exemplary embodiment such that reference is made to the aforementioned exemplary embodiment and only the points of differentiation will be explained at this point.
- a plurality of individual godet units 30 are provided between the spinning installation 1 and the drawing installation 8 , the threads 27 respectively being drawn off in parallel beside one another by said individual godet units 80 from the spinning installation 1 .
- the individual godet units 30 have a spinning spacing S therebetween such that the threads 27 are drawn off in parallel beside one another from the spinning nozzles 3 . 1 to 3 . 3 .
- the threads 27 in a singularized manner and with a plurality of wrappings are guided and drawn beside one another on the circumference of the godet units 9 . 1 and 9 . 2 . Subsequently, likewise in a parallel thread run, the threads are guided beside one another into the downstream crimping installation 11 .
- the treatment spacing B between the adjacent texturing apparatuses 12 . 1 , 12 . 2 , and 12 . 3 is equal to the spinning spacing S.
- the threads can be drawn off directly by the godet unit 9 . 1 , without the interposition of a plurality of individual godet units.
- the individual godet units could also be disposed so as to be mutually offset in the direction of the thread run. In all cases, the spinning spacing would be equal to the treatment spacing.
- the treatment spacing B for drawing, crimping, and post-treating there is also the potential for the treatment spacing B for drawing, crimping, and post-treating, to be adapted to a winding spacing W of the winding installation 21 .
- FIG. 3 an exemplary embodiment of the device according to the invention is shown in FIG. 3 , in which the threads without being spread out are guided from a post-treatment installation 16 to the winding positions 22 . 1 to 22 . 3 of the winding installation 21 . No additional thread-guiding elements between the post-treatment installation 16 and the winding installation 21 are thus required.
- FIG. 3 in terms of construction and function of the parts of the device, is identical to the first exemplary embodiment such that reference is made at this point to the aforementioned description.
- the method according to the invention and the device according to the invention for melt-spinning, drawing, crimping, and winding a plurality of threads are thus particularly advantageous for obtaining thread guiding which is favorable to the production process.
- the thread pitch herein may be determined by the spinning-nozzle pitch, by the number of wrappings of the threads on the godets, by the pitch of the texturing apparatuses, or by the pitch of the winding positions.
- the primary variable is preferably what is referred to as the contact length for heating the thread on the circumference of the godets of the godet units.
- the thread pitch between the threads herein is chosen such that a sufficiently high number of wrappings is obtained at a sufficient spacing of the wrappings of a thread.
- the number of wrappings herein determines the dwelling time of the thread on the surface of the godet. This results in a required operating region per thread on the circumference of the godets, and thus in a treatment spacing between the various threads.
- the parts of the device shown in the exemplary embodiments as per FIGS. 1 and 2 are exemplary. In this way, the drawing installation could also be formed from a combination of individual godet units and one godet unit.
- the texturing apparatuses are likewise exemplary. Apart from the stuffer-box principle, other crimping principles could also be applied.
Abstract
Description
Claims (13)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102014003317.1 | 2014-03-08 | ||
DE102014003317 | 2014-03-08 | ||
PCT/EP2015/054388 WO2015135794A1 (en) | 2014-03-08 | 2015-03-03 | Method and device for melt-spinning, drawing, crimping and winding multiple threads |
Publications (2)
Publication Number | Publication Date |
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US20170072611A1 US20170072611A1 (en) | 2017-03-16 |
US11117303B2 true US11117303B2 (en) | 2021-09-14 |
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US15/123,454 Active 2037-09-12 US11117303B2 (en) | 2014-03-08 | 2015-03-03 | Method and device for melt-spinning, drawing, crimping and winding multiple threads |
Country Status (4)
Country | Link |
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US (1) | US11117303B2 (en) |
EP (1) | EP3117031B1 (en) |
CN (1) | CN106103819B (en) |
WO (1) | WO2015135794A1 (en) |
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DE102018008062A1 (en) * | 2018-10-11 | 2020-04-16 | Oerlikon Textile Gmbh & Co. Kg | Method for operating a melt spinning device and a melt spinning device |
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- 2015-03-03 US US15/123,454 patent/US11117303B2/en active Active
- 2015-03-03 EP EP15707932.8A patent/EP3117031B1/en active Active
- 2015-03-03 WO PCT/EP2015/054388 patent/WO2015135794A1/en active Application Filing
- 2015-03-03 CN CN201580012434.6A patent/CN106103819B/en active Active
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US20170072611A1 (en) | 2017-03-16 |
CN106103819A (en) | 2016-11-09 |
WO2015135794A1 (en) | 2015-09-17 |
CN106103819B (en) | 2019-06-04 |
EP3117031B1 (en) | 2019-11-13 |
EP3117031A1 (en) | 2017-01-18 |
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